[mythtv-users] Audio, but No Volume Control

Tom Corcoran tomc at osits.com
Thu Dec 14 11:55:29 UTC 2006


Ian Newby wrote:
> Tom Corcoran wrote:
>   
>> Hi
>>
>> I have spent some time configuring my new MythTV box and am nearly ready 
>> to start enjoying it bar one problem, I cannot control the volume!  The 
>> volume is set at 'midrange' and when I turn up or down the volume via 
>> hotkeys it makes no difference whatsoever.
>>
>> My build is based on a mobo with on board AC97 sound chip (Intel), a PVR 
>> 500 MCE, a PCI nVidia FX5200 which hosts KDE based FC4 and MythTV .20. 
>> All functions of Myth seem to work OK bar the Volume control in Live TV, 
>> I am not sure about the volume in MP3 playback I will confirm.
>>
>> I had a loop back cable from audio out on the PVR500 to Line in on the 
>> Sound card but have found this seems unnecessary as when it is removed 
>> audio is still present.  I originally had a bt778 capture card installed 
>> and have since upgraded it to the 500 so i am unsure if this is related 
>> to the problem.
>>
>> When I run dmesg I see the following;
>>
>> tveeprom 1-0050: audio processor is CX25843 (idx 37)
>> ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
>> total)
>> tveeprom 2-0050: audio processor is CX25843 (idx 37)
>> ivtv1: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
>>
>> Any help would be greatly appreciated, Is any further data needed to 
>> troubleshoot further?
>>
>> Many thanks for your time.
>>
>> TomC
>>
>>
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>>   
>>     
> Hi Tom,
>     I seem to be having similar problems to you. Just a thought, what
> distribution are you using?
> I'm using Ubuntu Edgy with the standard supplied Myth packages. Are you
> using the same?
>
> If so it may be that building from source could be the answer.
>
> Regards
> Ian Newby
>
>
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>
>
>   
Hi Ian


Unfortunately or fortunately, depends on how you look at it, No.  I am 
using Fedora Core 4 installed via Jarod Wilsons install.  Sorry i cant 
be of further help.

TomC


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